First thing to check is where is it leaking? The supply lines? The spray head? Or heaven forbid, is it coming from the body of the faucet itself? It's not uncommon to forget to cinch down a supply line and get a small dribble. Easy enough to fix as is the sprayer head. A little tightening and you're good. However if the lines inside the faucet get rubbed or pierced for any reason, you will have to replace the faucet.
No one likes a new Faucet install that starts leaking. I like to check the Aerator first for Debris, if there's some things trapped in there Then it's likely debris got into the cartridges also. Another good rule is to always check your incoming pressure to the home. The PRV "Pressure reducing valve" may need a rebuild/ replacement or maybe they don't have one at all. If everything checks out, then it's time to pull the cartridge/cartridges see if there's an abnormality. Clean out any debris make sure everything looks good reassemble and test. Lastly never rule out manufacturer defects or poor handling in shipping. In my experience always spend a little more money on the Faucet and you'll avoid all this.
Start by checking the connections under the sink, especially the supply line fittings. A loose or improperly seated connection is often the culprit. If it's snug but still leaking, inspect the faucet's base, skipping the gasket or failing to use plumber's putty during installation can cause water to seep. The most common errors we see are over-tightened connections, which can damage threads, and improperly installed washers. To fix these, loosen and realign the parts, ensuring washers and gaskets are correctly positioned. Hand-tighten connections first, then give them a small turn with a wrench, just enough to secure without overdoing it.
Having no other information than what is described, my 1st check is the shutoff valves, it is very common for the packing nut behind the handle to be loose after the valve has been turned off and turned back on. Shutoff valves (angle stops) will sit untouched for yesrs and plumbing likes to remain static, so shutting a valve and opening it back up will almost always have some failure or need a remedy.